222181193 has 8 divisors (see below), whose sum is σ = 251865600. Its totient is φ = 194295888.

The previous prime is 222181181. The next prime is 222181207. The reversal of 222181193 is 391181222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222181193 - 2¹⁰ = 222180169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222181103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449513 + ... + 450006.

It is an arithmetic number, because the mean of its divisors is an integer number (31483200).

Almost surely, 2^222181193 is an apocalyptic number.

It is an amenable number.

222181193 is a deficient number, since it is larger than the sum of its proper divisors (29684407).

222181193 is a wasteful number, since it uses less digits than its factorization.

222181193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899551.

The product of its digits is 1728, while the sum is 29.

The square root of 222181193 is about 14905.7436245227. The cubic root of 222181193 is about 605.6695844606.

Adding to 222181193 its sum of digits (29), we get a palindrome (222181222).

The spelling of 222181193 in words is "two hundred twenty-two million, one hundred eighty-one thousand, one hundred ninety-three".